A．It cost me twenty dollars.B．It was a waste of time.C．It took me three hours.D．It' s t
A. It cost me twenty dollars.
B. It was a waste of time.
C. It took me three hours.
D. It' s time for dinner now.
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【12】
A. clear
B. clean
C. clearly
D. cleaning
In the sentence "it's relatively inexpensive." (Para. 2), "it" most probably refers ______.
A. the trip
B. the transportation
C. the accommodation
D. the food and wine
What is the most important one among the realities listed？
A. New vulnerabilities will be introduced into your environment every day.
B. If employees disregard warnings about the hazards of opening questionable email attachments, the manager should educate them about properly configuring firewalls and intrusion detection systems for their PCs.
C. Managers have more responsibility than ever.
D. Security managers are asked to support increasing degrees of network availability and access.
The underlined word "hacker" (Para. 1) most probably means "______".
A. highly recognisable names behind many of the computer technologies used today
B. the negative connotation of those computer users
C. a game, employing the tools that are readily available via the Internet
D. People who break into computer systems
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